Improving the selectivity of the luminescence determination of europium(III) with the use of a zirconium phosphate solid support

被引：12
|
作者：
Meshkova, SB [1 ]
Topilova, ZM [1 ]
Nazarenko, NA [1 ]
Litvinenko, AV [1 ]
Efryushina, NP [1 ]
机构：
[1] Natl Acad Sci Ukraine, Bogatskii Physicochem Inst, UA-65080 Odessa, Ukraine
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2004年 / 59卷 / 03期
关键词：
D O I：
10.1023/B:JANC.0000018967.31001.b5
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Conditions for the sorption of europium(III) ions by finely dispersed zirconium oxophosphate and for the formation of Eu complexes upon treatment of the resulting adsorbates with solutions of reagents (Na2WO4; oxalic, nicotinic, quinaldic, benzoic, and nalidixic acids; and benzoyltrifluoroacetone) were studied. It was found that the adsorbate of the Eu complex of nalidixic acid (the ratio of components, I : 2) exhibits highly intense luminescence and is characterized by the highest photostability. The use of sorption and the complexation of Eu with nalidixic acid on the sorbent improved the selectivity and lowered the detection limit for the determination of europium in high-purity samarium oxide.
引用
收藏
页码：246 / 249
页数：4
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